{"slug":"light0305-light-data-engineering","source_name":"light0305/light-data-engineering","name":"Light0305/Light Data Engineering","description":"Light 科研主线第 2 步·数据工程：**找得到且用得起的数据**（来源/许可/版本/大小/split）+ **提 idea 前先判数据可行性** （数据够不够支撑研究/统计功效）+ **防数据泄漏**（顶会拒稿高频雷）。何时用：用户要找/选/下载公开数据集，或给了数据问 \"能不能做研究/够不够/质量行不行\" / 要清洗·处理缺失异常·特征工程·划分数据集·数据增强 / 自建数据集（采集·标注规范· 隐私合规·发布） / 怀疑训练测试串了数据(泄漏) / 提 idea 前评数据基础。 触发词：数据够不够 / 数据可行性 / 数据质量 / 数据泄漏 / 防穿越 / train test 重叠 / 怎么划分 / 交叉验证 / 标注规范 / 一致性 IAA / 自建数据集 / 样本量够吗 / 统计功效 / 找数据集 / 数据许可 / dataset search / data leakage / feasibility / data split / annotation。核心纪律： **数据泄漏 = critical 一票否决**（标准化早于划分/时序穿越/实体重叠/目标编码穿越）；**","version":1,"lift":{"pass_rate_delta_pts":27.27,"pass_rate_pct":50,"total_cases":22,"passed_cases":11,"tokens_delta_pct":288,"turns_delta_pct":0,"verdict":"mixed","benchmark_model":"gemini-3.6-flash","grading_method":"judged","completed_at":"2026-08-20T03:18:38.099696+00:00"},"skill_score":null,"benchmark_models":[{"model":"gemini-3.6-flash","headline":true,"delta_pts":27.27,"with_pass_pct":50,"without_pass_pct":22.7,"tokens_delta_pct":288,"turns_delta_pct":0,"total_cases":22,"cases_aggregated":19,"verdict":"mixed","never_hurt":false,"completed_at":"2026-08-20T03:18:38.099696+00:00","run_id":"819577f7-ace5-449b-bdee-dcff33e82f35","version_number":1,"is_latest_version":true,"gate":null}],"trust":{"skill_safety":"passed","safety_status":"clean","intent_verdict":"safe","content_status":"clean","indexable":true},"license":"MIT","install_count":0,"manifest_hash":"15b24663e3710939bbd3b05ccef42dc50102198cc08be2ff2eff5d5161f05cc6","raw_url":"https://app.decimal.ai/s/light0305-light-data-engineering/SKILL.md","scorecard_url":"https://app.decimal.ai/skills/light0305-light-data-engineering"}